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| 载镉废啤酒酵母中金属镉的回收 | |
| 引用本文： | 代淑娟,魏德洲,白丽梅,周东琴,张一氢. 载镉废啤酒酵母中金属镉的回收[J]. 有色金属(冶炼部分), 2009, 0(5) |
| 作者姓名： | 代淑娟 魏德洲 白丽梅 周东琴 张一氢 |
| 作者单位： | 1. 河北理工大学资源与环境学院,唐山,063009;东北大学资源与土木工程学院,沈阳,110004 2. 河北理工大学资源与环境学院,唐山,063009 3. 东北大学资源与土木工程学院,沈阳,110004 4. 沈阳市环境保护局东陵分局,沈阳,110016 |
| 基金项目： | 国家自然科学基金资助项目,辽宁省自然科学基金项目,辽宁省科技计划项目 |
| 摘 要： | 以水洗废啤酒酵母为吸附剂,对废水中镉离子进行生物吸附及固液分离后,获得载镉废啤酒酵母。采用焙烧-酸浸-置换法回收"载镉菌体上的镉",在700℃焙烧24 h,菌渣中镉富集比为31.72,烧渣经15 g/L的硫酸、温度85℃条件下,浸出2 h,再用锌粒置换,得海绵镉,镉总回收率在98%以上。 |
| 关 键 词： | 镉 废啤酒酵母 酸浸 置换 |
Recovering Cadmium in Waste Saccharomyces Cerevisiae Loaded Cammium |
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| DAI Shu-juan,WEI De-zhou,BAI Li-mei,ZHOU Dong-qin,ZHANG Yi-qing. Recovering Cadmium in Waste Saccharomyces Cerevisiae Loaded Cammium[J]. Nonferrous Metals(Extractive Metallurgy), 2009, 0(5) | |
| Authors: | DAI Shu-juan WEI De-zhou BAI Li-mei ZHOU Dong-qin ZHANG Yi-qing |
| Abstract: | The waste saccharomyces cerevisiae loaded cadmium was got by using water-washing waste saccharomyces cerevisiae as adsorbent to adsorb cadmium ions in waste water and separate waste saccharomyces cerevisiae loaded cadmium from water.The method of roasting,leaching in acid and replacement by zinc was used to recover cadmiam from waste saccharomyces cerevisiae loaded cadium.Roasted for 24 h at 700℃,and then leached for 2 h by 15g/L H2SO4 at 85℃,and zinc is used to replace sponge cadmium.The general recovery of cadmium is above 98%. |
| Keywords: | Cadmium Waste saccharomyces cerevisiae Leach in acid Replacement |
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